Thanks for everyone's input. This will be more of a cart than a working table so welding/cutting over the top of an exposed regulator/valve wasn't my plan. Although the emphasis seemed to be more on the safety and protection of the valve than the function. I will go the extra mile to protect the val...

New to the forum (hello) and searched for any advice for positioning my cylinders and came up empty handed. I'm wanting to lay my cylinders down horizontally on the back side underneath my table vs having them stick up above the top. I'm assuming it wouldn't matter since it's compressed gas but ever...